Microfluidic device



FIG. 1 is a front side perspective view showing my new design;

FIG. 2 is an enlarged perspective view of a portion of the microfluidicdevice within the area identified by broken circle “FIG. 2” in FIG. 1;

FIG. 3 is an enlarged perspective view of a portion of the microfluidicdevice within the area identified by broken circle “FIG. 3” in FIG. 1;

FIG. 4 is a top view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a side view thereof; and,

FIG. 7 is another side view thereof.

I claim the ornamental design for a microfluidic device, as shown anddescribed.